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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2015
Earnings Per Share [Abstract] |
Schedule of earnings (loss) per share, basic and diluted | The following is a reconciliation of the calculation of basic and diluted earnings per share (in thousands, except share and per share data):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Numerator: |  |  |  |  |  |  |
Net income | $ | 24,464 |  |  | $ | 43,808 |  |  | $ | 59,928 |  |  | $ | 99,762 |
Denominator: |  |  |  |  |  |  |
Weighted-average number of common shares outstanding—basic | 200,852,072 |  |  | 195,796,772 |  |  | 200,776,641 |  |  | 195,733,185 |
Effect of dilutive securities: |  |  |  |  |  |  |
Unvested restricted common stock | 99,873 |  |  | 215,834 |  |  | 130,349 |  |  | 193,477 |
Unexercised stock appreciation rights | — |  |  | 7,512 |  |  | 1,387 |  |  | — |
Shares related to unvested PSUs | 215,714 |  |  | 414,655 |  |  | 215,714 |  |  | 414,655 |
Weighted-average number of common shares outstanding—diluted | 201,167,659 |  |  | 196,434,773 |  |  | 201,124,091 |  |  | 196,341,317 |
Earnings per share: |  |  |  |  |  |  |  |  |  |
Basic earnings per share | $ | 0.12 |  |  | $ | 0.22 |  |  | $ | 0.30 |  |  | $ | 0.51 |
Diluted earnings per share | $ | 0.12 |  |  | $ | 0.22 |  |  | $ | 0.30 |  |  | $ | 0.51 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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